<template>

  <el-container class="home-container">
    <!-- 头部 -->
    <el-header>
      <div>
        <img src="../assets/heima.png" alt=""/>
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 侧边栏 -->
    <el-container>
      <el-aside width="isCollapse ? '64' : '200'">
        <div class="toggle-button" @click="togglebutton">|||</div>
          <el-menu
              background-color="#333744"
              text-color="#fff"
              active-text-color="#409EFF" unique-opened :collapse="isCollapse" :collapse-transition="false" :router="true" :default-active="activePath">
              <el-submenu :index="item.id +''" v-for="item in menulist" :key = "item.id" index="1">
                <!-- 一级菜单 -->
                <template slot="title">
                  <!-- 图标 -->
                  <i :class="iconsObj[item.id]"></i>
                  <!-- 文本 -->
                  <span>{{item.authName}}</span>
                </template>
                  <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/'+subItem.path)">
                    <template slot="title">
                      <!-- 图标 -->
                      <i class="el-icon-menu"></i>
                      <!-- 文本 -->
                      <span>{{subItem.authName}}</span>
                    </template>
                  </el-menu-item>
              </el-submenu>
            </el-menu>
          </el-col>
        </el-row>

      </el-aside>
      <!-- 主边栏 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data(){
    return{
      menulist:[],
      iconsObj:{
        '125':'iconfont icon-user',
        '103':'iconfont icon-tijikongjian',
        '101':'iconfont icon-shangpin',
        '102':'iconfont icon-danju',
        '145':'iconfont icon-baobiao'
      },
      isCollapse:false,
      // 链接
      activePath: ''
    }
  },
  created() {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods:{
    logout(){
      window.sessionStorage.clear()
      this.$router.push("/login")
    },
    async getMenuList(){
    const {data:res} = await this.$http.get('menus')
    if(res.meta.status !== 200)return this.$message.error('res.meta.msg')
    this.menulist=res.data
    },
    togglebutton(){
     this.isCollapse = !this.isCollapse
    },
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath = activePath
    }
  },
}
</script>

<style lang="less" scoped>
.home-container{
  height:100%;
}
.el-header{
  background-color:#373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items:center ;
  color: #fff;
  font-size: 20px;
  >div{
    display: flex;
    align-items: center;
    span{
      margin-left:15px;
    }
  }
}
.el-aside{
  background-color:#333744;
  .el-menu{
    border-right: none;
  }
}
.el-main{
  background-color:#eaedf1;
}
.iconfont{
  margin-right:10px ;
}
.toggle-button{
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
